噴墨列印技術用於製造液晶顯示器之彩色濾光片

Ink-Jet Printing Technology on Manufacturing Color Filter for Liquid Crystal Display

林智堅 ； 邱琬雯 ； 鄭兆凱 ； 張惠珍

《光學工程》 84期 (2003/12) Pp. 88-96

https://doi.org/10.30011/OE.200312.0013

摘要

A manufacturing process is developed to make color filter by discharging the predetermined color ink to the substrate, and then curing the discharged ink to form the color filter pattern. In this paper, an ink-jet printing apparatus with drop on demand multi-nozzle heads was set up to manufacture color filters. The apparatus includes a X-Y-θ table supporting the substrate, and a set of drop-on-demand ink-jet heads arranged on the adjustable Z-axis for coloring the filter elements. The special inks invested by ITRI (Industrial Technology Research Institute, Taiwan), by using this system with OES-I print head, a strip-type color filter (pixel size 113μm* 339μm, with 20μm black matrix width) made by ink-jet printing method is achieved. The color coordinates of three colors (red, green and blue) on the chromaticity diagram are (0.64, 0.35), (0.31, 0.52) and (0.13, 0.13). The transmittance for red, green and blue is 90%, 80%, and 85%, respectively. Compare with commercial standards, the heat, light and chemical test results come to △E＜5 for each color, but the alkali tests (5% NaOH & KOH) are not satisfactory. Further study to improve the ink formula is needed.

關鍵字

噴墨列技術 ； 彩色濾光片 ； 噴墨頭

並列摘要

A manufacturing process is developed to make color filter by discharging the predetermined color ink to the substrate, and then curing the discharged ink to form the color filter pattern. In this paper, an ink-jet printing apparatus with drop on demand multi-nozzle heads was set up to manufacture color filters. The apparatus includes a X-Y-θ table supporting the substrate, and a set of drop-on-demand ink-jet heads arranged on the adjustable Z-axis for coloring the filter elements. The special inks invested by ITRI (Industrial Technology Research Institute, Taiwan), by using this system with OES-I print head, a strip-type color filter (pixel size 113μm* 339μm, with 20μm black matrix width) made by ink-jet printing method is achieved. The color coordinates of three colors (red, green and blue) on the chromaticity diagram are (0.64, 0.35), (0.31, 0.52) and (0.13, 0.13). The transmittance for red, green and blue is 90%, 80%, and 85%, respectively. Compare with commercial standards, the heat, light and chemical test results come to △E＜5 for each color, but the alkali tests (5% NaOH & KOH) are not satisfactory. Further study to improve the ink formula is needed.

並列關鍵字

Inkjet Printing Technology ； Color FiLter ； Print Heead